Watch Database

    Cyma Tavannes 901

    (Cyma, Tavannes)

    Ligne: 18'''

    Jewels: 15

    Power Reserve: 36 hrs

    Frequency: 18000 vph

    Type: Manual Wind

    Period used: ~1930

    Diameter: 40.6 mm

    Height: 4.55 mm

    Hands: 1.94 x 1.09 / 0.26 mm

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    The Cyma Tavannes 901 watch movement is an open face calibre with functions including stem wind and set, sub second, automatic, and sweep seconds. It is part of a series that includes the 785, 900, and 930 movements, but the differences between them are not known. The Cyma Tavannes 901 movement was used in watches manufactured around the 1930s.

    The Cyma Tavannes 901 features the following functions:

    • Automatic Winding
    • Stem wind and set
    • Sub Second
    • Sweep Seconds

    Balance Staff Listing

    Ronda Reference #Shock SystemBuy
    4504Ordinary/None
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    1989Ordinary/None
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    4264Incabloc
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    4264Shockproof
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    Mainspring Listing

    DimensionsGR Reference #End TypeBuy
    1.50 x 0.200 x 460 x 16.0 mmManual
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    1.50 x 0.200 x 460 x 15.5 mmGR4352Manual
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    Parts Listing

    Part DescriptionReference #AlternateBuy
    CLICK425/381425/PHENIX 781
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    CLICKSPRING430/458
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    JEWEL, LOWER BALANCE CAP330/157
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    PALLET ARBOR72S/124P714/LAN 39
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    RATCHET WHEEL415/530
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    ROLLER 325X100X6082S/91R
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    SCREW, CASE5101/100
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    SCREW, CLICK5425/212
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    SCREW, RATCHET WHEEL5415/291
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    SCREW, STUD5738/167
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    SET BRIDGE445/548
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    STAFF, HSP .65100/1718
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    STAFF, HSP .85100/1177
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    STEM200/997F
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